The boy was found floating face down in a pool behind a home on Howe Court around 11:30 a.m., police said. The boy did not live at the house and was visiting family friends, said police Lt. Randy Fenn. His parents were not there at the time of the incident.

An adult who lived at the house found the boy and called police. Dispatchers talked the adult through cardiopulmonary resuscitation until emergency crews arrived, police said.

The boy was taken to NorthBay Medical Center in Fairfield, where he was pronounced dead. The incident is under investigation, but no foul play is suspected, police said.